local retVal = redis.call('get','PARAMS:BIZ:STAFF:' .. KEYS[1] .. ':' .. KEYS[2])
if retVal then return retVal end
retVal = redis.call('get', 'PARAMS:BIZ:DEPT:' .. KEYS[1] .. ':' .. KEYS[3])
if(retVal) then	return retVal end
retVal = redis.call('get', 'PARAMS:BIZ:DISTRICT:' .. KEYS[1] .. ':' .. KEYS[4])
if(retVal) then return retVal end
retVal = redis.call('get', 'PARAMS:BIZ:GLOBAL:' .. KEYS[1])
if(retVal) then return retVal else return nil end